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-rw-r--r--arch/s390/include/uapi/asm/Kbuild3
-rw-r--r--arch/s390/include/uapi/asm/msgbuf.h38
-rw-r--r--arch/s390/include/uapi/asm/sembuf.h30
-rw-r--r--arch/s390/include/uapi/asm/shmbuf.h49
-rw-r--r--arch/s390/include/uapi/asm/signal.h23
5 files changed, 19 insertions, 124 deletions
diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
index faef3f7e8353..e364873e0d10 100644
--- a/arch/s390/include/uapi/asm/Kbuild
+++ b/arch/s390/include/uapi/asm/Kbuild
@@ -9,9 +9,12 @@ generic-y += errno.h
generic-y += fcntl.h
generic-y += ioctl.h
generic-y += mman.h
+generic-y += msgbuf.h
generic-y += param.h
generic-y += poll.h
generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
generic-y += sockios.h
generic-y += swab.h
generic-y += termbits.h
diff --git a/arch/s390/include/uapi/asm/msgbuf.h b/arch/s390/include/uapi/asm/msgbuf.h
deleted file mode 100644
index 604f847cd68c..000000000000
--- a/arch/s390/include/uapi/asm/msgbuf.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _S390_MSGBUF_H
-#define _S390_MSGBUF_H
-
-/*
- * The msqid64_ds structure for S/390 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct msqid64_ds {
- struct ipc64_perm msg_perm;
- __kernel_time_t msg_stime; /* last msgsnd time */
-#ifndef __s390x__
- unsigned long __unused1;
-#endif /* ! __s390x__ */
- __kernel_time_t msg_rtime; /* last msgrcv time */
-#ifndef __s390x__
- unsigned long __unused2;
-#endif /* ! __s390x__ */
- __kernel_time_t msg_ctime; /* last change time */
-#ifndef __s390x__
- unsigned long __unused3;
-#endif /* ! __s390x__ */
- unsigned long msg_cbytes; /* current number of bytes on queue */
- unsigned long msg_qnum; /* number of messages in queue */
- unsigned long msg_qbytes; /* max number of bytes on queue */
- __kernel_pid_t msg_lspid; /* pid of last msgsnd */
- __kernel_pid_t msg_lrpid; /* last receive pid */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-#endif /* _S390_MSGBUF_H */
diff --git a/arch/s390/include/uapi/asm/sembuf.h b/arch/s390/include/uapi/asm/sembuf.h
deleted file mode 100644
index 3e917697b668..000000000000
--- a/arch/s390/include/uapi/asm/sembuf.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _S390_SEMBUF_H
-#define _S390_SEMBUF_H
-
-/*
- * The semid64_ds structure for S/390 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem (for !__s390x__)
- * - 2 miscellaneous 32-bit values
- */
-
-struct semid64_ds {
- struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
- __kernel_time_t sem_otime; /* last semop time */
-#ifndef __s390x__
- unsigned long __unused1;
-#endif /* ! __s390x__ */
- __kernel_time_t sem_ctime; /* last change time */
-#ifndef __s390x__
- unsigned long __unused2;
-#endif /* ! __s390x__ */
- unsigned long sem_nsems; /* no. of semaphores in array */
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* _S390_SEMBUF_H */
diff --git a/arch/s390/include/uapi/asm/shmbuf.h b/arch/s390/include/uapi/asm/shmbuf.h
deleted file mode 100644
index 9cdce8d7ce60..000000000000
--- a/arch/s390/include/uapi/asm/shmbuf.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _S390_SHMBUF_H
-#define _S390_SHMBUF_H
-
-/*
- * The shmid64_ds structure for S/390 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem (for !__s390x__)
- * - 2 miscellaneous 32-bit values
- */
-
-struct shmid64_ds {
- struct ipc64_perm shm_perm; /* operation perms */
- size_t shm_segsz; /* size of segment (bytes) */
- __kernel_time_t shm_atime; /* last attach time */
-#ifndef __s390x__
- unsigned long __unused1;
-#endif /* ! __s390x__ */
- __kernel_time_t shm_dtime; /* last detach time */
-#ifndef __s390x__
- unsigned long __unused2;
-#endif /* ! __s390x__ */
- __kernel_time_t shm_ctime; /* last change time */
-#ifndef __s390x__
- unsigned long __unused3;
-#endif /* ! __s390x__ */
- __kernel_pid_t shm_cpid; /* pid of creator */
- __kernel_pid_t shm_lpid; /* pid of last operator */
- unsigned long shm_nattch; /* no. of current attaches */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-struct shminfo64 {
- unsigned long shmmax;
- unsigned long shmmin;
- unsigned long shmmni;
- unsigned long shmseg;
- unsigned long shmall;
- unsigned long __unused1;
- unsigned long __unused2;
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* _S390_SHMBUF_H */
diff --git a/arch/s390/include/uapi/asm/signal.h b/arch/s390/include/uapi/asm/signal.h
index c57f9d28d894..9a14a611ed82 100644
--- a/arch/s390/include/uapi/asm/signal.h
+++ b/arch/s390/include/uapi/asm/signal.h
@@ -97,22 +97,31 @@ typedef unsigned long sigset_t;
#include <asm-generic/signal-defs.h>
#ifndef __KERNEL__
-/* Here we must cater to libcs that poke about in kernel headers. */
+/*
+ * There are two system calls in regard to sigaction, sys_rt_sigaction
+ * and sys_sigaction. Internally the kernel uses the struct old_sigaction
+ * for the older sys_sigaction system call, and the kernel version of the
+ * struct sigaction for the newer sys_rt_sigaction.
+ *
+ * The uapi definition for struct sigaction has made a strange distinction
+ * between 31-bit and 64-bit in the past. For 64-bit the uapi structure
+ * looks like the kernel struct sigaction, but for 31-bit it used to
+ * look like the kernel struct old_sigaction. That practically made the
+ * structure unusable for either system call. To get around this problem
+ * the glibc always had its own definitions for the sigaction structures.
+ *
+ * The current struct sigaction uapi definition below is suitable for the
+ * sys_rt_sigaction system call only.
+ */
struct sigaction {
union {
__sighandler_t _sa_handler;
void (*_sa_sigaction)(int, struct siginfo *, void *);
} _u;
-#ifndef __s390x__ /* lovely */
- sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-#else /* __s390x__ */
unsigned long sa_flags;
void (*sa_restorer)(void);
sigset_t sa_mask;
-#endif /* __s390x__ */
};
#define sa_handler _u._sa_handler
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